Method of securing the chloridization of ores.



WILLIAM KOEHLER, 0F CLEVELAND, OHIO.

METHOD OF SECURING THE GHLORIDIZATION OF ORES.

No Drawing.

To all whom it may concem:

Be it known that I, VILLIAM KoEHLER, a

citizen of the United Statesof America, rej-' siding at Cleveland, inthe-'- county of (Juyahoga and State'of Ohio, have invented certain newand useful Improvements in Methods of Securing the Chloridization ofOres; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it pertains to make and use the same.

This invention relates to a new process for the treatment of refractoryor rebellious ores in order to bring them into such a condition thatthey may be easily worked according to well known methods.

The object of this invention is to provide a cheap and economical methodof securing the complete chloridization of ores.

My invention therefore consists in subjecting the material or ore at asuitable tem-.

perature, which will vary accordin to the ore under treatment, to theaction of a halogen acid in the presence of hydrogen.

In carrying out my process I prefer to subject the material or ore,which is to be treated, to the action of hydrochloric acid in thepresence of hydrogen.

To secure the proper working of my proc ess the ore should be at asuitable temperature during the working, and this temperature will varyaccording to the nature of the treatment, but must be below thetemperature necessary for the vaporization of the metallic chloridsformed. In some instances ;the heat of combination will be sufficientalone to bring,=about the decomposition of the material and in otherinstances the heat of combination 'will not be sufficient to carry outthe reaction, but it will be necessary therefore to apply external heat.

The process can be carried out in any suitable metallurgical furnace,decomposition receptacle or similar apparatus.

In carrying out my process the material or 'ore to be treated is firstreduced to the proper size and is then placed in the receiving chamberofthe furnaceor decomposition receptacle, preferably a tube mill. Thehydrochloric acid is allowed to enter thecham. ber together with thehydrogen and the furnace is maintained at a temperature suitable toeffect the. decomposition of the ore and Specification of LettersPatent.

Patented Dec. '7, 1909.

Application filed March 26, 1909'. .Serial No. 485,899.

; the formation of chlorids of the metallic con- .stituents, but nothigh enough to vaporize the metallic chlorids formed, but high enough tosecure the liberation of the metalloids either in their elementalcondition or as volatile compounds.

For commercial purposes very good results are obtained by using ahalogen acid gas, preferably hydrochloric acid together with water gasin which case we have the halogen acid acting in the presence ofhydrogen and a carbon compound.

that I claim is,-

1. The process of treating refractory ores which consists in subjectingthem to the action of a halogen acid in'the presence. of hydrogen.

2. The process of treating refractory ores consisting in subjecting themtOf tlle action of a halogen acid in the presence of hydro-i gen and acarbon compound.

,3. The process of treating refractory ores which consists in subjectingthem to the action of hydrochloric acid in the presence of hydrogen.

4. The process of treating refractory ores" which consists insubjectingthem to the ac tion of hydrochloric acid in the presence 0 e acarbon compound and hydrogen.

5. The process of treating refractory ores which consists in subjectingthem to the action of a halogen acid-gas in the presence of hydro en.

6. T e process of treating refractory ores which consists in subjectingthem to the action of a halogen acid gas in the presence of hydrogen anda carbon compound.

7 The process of treating refractory ores which consists in subjectingthem to the action of gaseous hydrochloric acid in the presenceoff-hydrogen.

8. The process of treating refractory ores which consists in subjectingthem to the action of gaseous hydrochloric acid in the presence ofhydrogen and a carbon compound. 1

' In testimony whereof, I sign the foregoing specification, in thepresence of'two wit- 'nesses.

WILLIAM KOEHLER.

